It's all in the MATH.
The Big Bang Theory Season 1, Episode 2
♪ Math, Science, History,
unraveling the mystery ♪
The Big Bang Theory Season 12, Episode 20
that's also a really weird
MATH problem."
The Big Bang Theory Season 11, Episode 17
# Math, Science, History,
unraveling the mystery #
The Big Bang Theory Season 11, Episode 11
♪ Math, Science, History,
unraveling the mystery ♪
The Big Bang Theory Season 7, Episode 6